to u.s. foreign policy, as confirmation hearings begin for secretary of state nominee john kerry, two former national security advisers stephen hadley and zbigniew brzezinski weigh in. >> brown: paul solman looks at china's fast growing economy and asks, is it headed for a crash? >> wages are rising for the burgeoning middle class, but for hardscrabble factory workers: mounting protests against unlivable wages and working conditions. >> ifill: and vice president joe biden hangs out with hari sreenivasan on google plus to talk about gun violence. >> make your voices heard. this town listens when people rise up and speak. >> ifill: that's all ahead on tonight's "newshour."